Results 21 to 30 of about 8,802 (281)

Hybrid Layered Double Perovskite Halides of Transition Metals

Journal of the American Chemical Society, 2022
Hybrid layered double perovskite (HLDP) halides comprise hexacoordinated 1+ and 3+ metals in the octahedral sites within a perovskite layer and organic amine cations between the layers. Progress on such materials has hitherto been limited to compounds containing main group 3+ ions isoelectronic with PbII (such as SbIII and BiIII). Here, we report eight
Pratap Vishnoi, Julia L. Zuo, Xiaotong Li, Devesh Chandra Binwal, Kira E. Wyckoff, Lingling Mao, Linus Kautzsch, Guang Wu, Stephen D. Wilson, Mercouri G. Kanatzidis, Ram Seshadri, Anthony K. Cheetham   +11 more
openaire   +4 more sources

Strong Electron–Phonon Coupling Induced Self‐Trapped Excitons in Double Halide Perovskites

Advanced Energy & Sustainability Research, 2023
Double halide perovskites exhibit impressive potential for the self‐trapped exciton (STEs) luminescence. However, the detailed mechanism of the physical nature during the formation process of STEs in double perovskites is still ambiguous.
Baian Chen, Rui Chen, Bolong Huang
doaj   +1 more source

Bandgap Engineering of Lead-Free Halide Double Perovskites

Proceedings of the 13th Conference on Hybrid and Organic Photovoltaics, 2021
Lead-free halide double perovskites (HDPs, A2BIBIIIX6) with attractive optical and electronic features are regarded as one of the most promising alternatives to overcome the toxicity and stability issues of lead halide perovskites. They provide a wide range of possible combinations and rich substitutional chemistry with interesting properties for ...
Fuxiang ji, Feng Gao, Weihua Ning, Feng Wang   +3 more
  +6 more sources

A high-temperature double perovskite molecule-based antiferroelectric with excellent anti-breakdown capacity for energy storage

Nature Communications, 2023
Halide double perovskites have recently emerged as an environmentally green candidate toward electronic and optoelectronic applications owing to their non-toxicity and versatile physical merits, whereas study on high-temperature antiferroelectric (AFE ...
Yi Liu, Yu Ma, Xi Zeng, Haojie Xu, Wuqian Guo, Beibei Wang, Lina Hua, Liwei Tang, Junhua Luo, Zhihua Sun   +9 more
doaj   +1 more source

Halide double-perovskites: High efficient light emission and beyond

APL Energy, 2023
Lead-free halide double perovskites are stable and versatile materials for a wide range of applications, particularly for lighting, thanks to their very efficient emission of warm white light.
Daniela Marongiu, Stefano Lai, Fang Liu, Angelica Simbula, Francesco Quochi, Michele Saba, Andrea Mura, Giovanni Bongiovanni   +7 more
doaj   +1 more source

(INVITED) Revisiting Duffy's model for Sb3+ and Bi3+ in double halide perovskites: Emergence of a descriptor for machine learning

Optical Materials: X, 2021
The Duffy's model is reformulated for Sb3+ and Bi3+ in cubic chloro- and bromo-elpasolites with « 0D » perovskite structure. The new equation allows calculating the energy of the first s2 → s1p1 electron transition from crystal structure data. The Stokes
Philippe Boutinaud
doaj   +1 more source

Ionic polarization-induced current-voltage hysteresis in ch3nh3pbx3 perovskite solar cells [PDF]

, 2016
CH3NH3PbX3 (MAPbX3) perovskites have attracted considerable attention as absorber materials for solar light harvesting, reaching solar to power conversion efficiencies above 20%.
Franckeviius, Marius, Gao, Peng, Graetzel, Michael, Lee, Yong Hui, Meloni, Simone, Moehl, Thomas, Nazeeruddin, Mohammad Khaja, Rothlisberger, Ursula, Saliba, Michael, Tress, Wolfgang, Zakeeruddin, Shaik Mohammed   +10 more
core   +5 more sources

Lead-free perovskite solar cells, what's next?

Next Energy, 2023
Although lead halide perovskite solar cells (PSCs) have achieved an efficiency of 25.7 %, the highly toxic composition, element lead, will hinder the use of PSCs in indoor photovoltaics, building-integrated photovoltaics and wearable devices.
Xinhui Luo, Xiao Liu, Liyuan Han
doaj   +1 more source

Brillouin Light Scattering of Halide Double Perovskite

Advanced Photonics Research, 2022
Cs2Ag1−x Na x In1−y Bi y Cl6 with high photoluminescence quantum yield (PLQY) and broadband emission due to self‐trapped excitons (STEs) is one of the promising candidates for single‐emitter‐based white light–emitting materials and devices. Considering fundamental physical mechanisms, structure design and performance optimization of devices ...
Simin Pang, Xinbao Liu, Jiajun Luo, Yaru Xie, Jiang Tang, Sheng Meng, Ping‐Heng Tan, Jun Zhang   +7 more
openaire   +2 more sources

Synthetic approaches for thin-film halide double perovskites [PDF]

Matter, 2021
Summary Inspired by the fascinating class of hybrid organic-inorganic halide perovskite materials, halide double perovskites have emerged as non-toxic Pb-free contenders for application as active layers in optoelectronic devices. Heterovalent substitution of Pb2+ by non-toxic metal cations yields the double-perovskite structure, which allows for ...
Yihui Zhao, Kevin Cruse, Maged Abdelsamie, Gerbrand Ceder, Carolin M. Sutter-Fella   +4 more
openaire   +3 more sources